Fair Value Measurements - Schedule of estimated fair value for the warrant liabilities measured using significant unobservable inputs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Beginning of period	$ 8,846	$ 71,881
Exercise of preferred stock warrants	(1,111)	(24)
Expiration of common stock warrant	(5,018)	0
Change in fair value of common stock warrant	0	(64,628)
Change in fair value of preferred stock warrants	(2,717)	1,617
End of period	$ 0	$ 8,846